CN108186166A - Rumpbone fixing bracket - Google Patents

Abstract

The invention provides a sacral fixation bracket, comprising a fixing plate (1), a support rod (2) and a patch (4); a plurality of support rods (2) include a first support rod (21) and a second support rod (22), the first support rod (21) and the second support rod (22) are parallel to each other or have an included angle in the direction of axial extension; the patch (4) is arranged on the first support rod (21) and the second support rod Between the rods (22); the support rod (2) comprises a rod head (201), a shaft part (202), and a rod tail (203); a rod head (201), a shaft part (202), a rod tail ( 203) are connected in turn; the fixed plate (1) is connected with the rod head (201); the rod tail (203) of the first support rod (21) is connected with the rod tail (203) of the second support rod (22). The fixing plate of the present invention is provided with a truncation groove, and the fixed position of the fixing plate on the ilium is adjusted according to the usage requirements, and then the redundant part of the fixing plate is cut off, so as to adapt to operations with different sacral truncation lengths.

Description

sacral fixation bracket

technical field

The invention relates to the field of medical devices, in particular to a sacral fixation bracket.

Background technique

About 1% to 7% of primary spinal tumors occur in the sacrum. According to literature reports, extended tumor resection is the best treatment to reduce the recurrence rate, and partial or even total sacral resection is often required to achieve extended tumor resection. Due to the complex anatomical location near the sacrum, extended resection of sacral tumors is accompanied by many complications, including massive blood loss, wound infection, nerve function damage, and pelvic structure destruction.

As we all know, the maintenance of defecation function requires the normal anatomical shape and function of the levator ani muscle, and the integrity of the pelvic floor muscle is also a prerequisite for the normal support of the pelvic floor. However, during a sacrectomy, the pelvic floor muscles will inevitably lose their attachment. This will cause the pelvic floor muscles to lose their normal anatomical structure, resulting in their inability to contract normally to perform their physiological functions, resulting in various complications such as postoperative incontinence, herniation of pelvic contents, etc., seriously affecting the quality of life of patients.

So far, a variety of soft tissue reconstruction strategies after sacral resection have been reported, but there is no reconstruction method that can fully restore the normal anatomical structure of the levator ani muscle. Therefore, in order to restore the anatomical shape of the levator ani muscle, this patent attempts to reconstruct the insertion point of the levator ani muscle. This is of great significance for preserving bowel and bladder function and preventing the occurrence of pelvic floor hernia after sacrectomy.

Patent document CN106037993A provides a sacral prosthesis, including a prosthetic body, the prosthetic body includes two first prostheses and a second prosthesis connected between the two first prostheses, the first end of each first prosthesis Connected with the second prosthesis, the two first prosthesis and the second prosthesis are integrally formed, the second end of each first prosthesis extends in a direction away from the second prosthesis and contacts with the ilium, and the second prosthesis The top of the prosthesis is in contact with the lumbar vertebral body; the nail-rod structure includes a connection seat and a rod body, the connection seat is connected to the restoration main body, and the rod body is fixed on the connection seat. According to this patent document, it can effectively solve the problems of unreliable support and easy fatigue fracture of the nail-rod system in the prior art. However, the structure provided by this patent document cannot effectively adapt to different sacrum and ilium sizes of different patients, and the length of sacrum resection during surgery is not fixed, and the specification and installation position of the sacral prosthesis itself are difficult to achieve flexible adjustment.

Contents of the invention

Aiming at the defects in the prior art, the object of the present invention is to provide a sacral fixation bracket.

The sacral fixation bracket provided according to the present invention includes a fixation plate, a support rod and a patch;

The plurality of support rods include a first support rod and a second support rod, and the first support rod and the second support rod are parallel to each other or have an included angle in the direction of axial extension;

The patch is disposed between the first support rod and the second support rod;

The support rod includes a rod head, a shaft part and a rod tail; the rod head, the shaft part and the rod tail are connected in sequence;

The fixing plate is connected with the rod head; the rod tail of the first support rod is connected with the rod tail of the second support rod.

Preferably, an adapter plate is also included; the adapter plate is made of a flexible material,

The two ends of the adapter plate along the extending direction of the length are respectively connected with the rod tail of the first support rod and the rod tail of the second support rod;

The first support rod, the adapter plate, and the second support rod are sequentially connected in a smooth transition.

Preferably, the support rod and/or the adapter plate are provided with threading holes; the openings of the threading holes extend smoothly;

The support rod is bent in the direction of length extension.

Preferably, a length-adjusting suture is threaded on the threading hole, and the length-adjusting suture is connected to the patch;

The surface of the support rod and/or the adapter plate is a rough surface;

A membrane is provided on the patch, and the membrane is a decellularized dermal matrix biofilm.

Preferably, the fixing plate is provided with nail holes and cut-off grooves;

The nail hole runs through the fixed plate along the thickness direction of the fixed plate, and the cut-off groove extends along the width direction of the fixed plate;

The nail holes and cut-off grooves are arranged sequentially along the length extension direction of the fixing plate;

The fixing plate is made of flexible material, and the fixing plate can be deformed in the extending direction of the length and the extending direction of the width.

Preferably, the nail hole is petal-shaped, and the petal-shaped nail hole includes a plurality of petals, and the plurality of petals are arranged along the circumferential direction of the nail hole;

It also includes a titanium mesh, which is installed on the end face of one end of the fixed plate along the thickness direction;

Injection holes are also provided through the fixing plate.

Preferably, the fixed plate includes a plurality of plate sections, and two adjacent plate sections are connected by universal adjustment rods;

Nail holes are arranged on the board section.

Preferably, a telescoping rod is provided on the rod head, the shaft or the tail.

Preferably, the telescopic rod includes a displacement member, a turning block and a turning elastic rope;

The plurality of displacement elements includes a first displacement element and a second displacement element, and the first displacement element and the second displacement element are arranged symmetrically to the center; the opposite sides of the first displacement element and the second displacement element are stepped surfaces;

The cross-sectional shape of the overturning block is rectangular; a plurality of overturning blocks are arranged between the first displacement member and the second displacement member, and the plurality of overturning blocks are connected by an overturning elastic rope;

An elastic piece is arranged between the first displacement piece and the second displacement piece, and the elastic piece is in a stretched state.

Preferably, a sleeve is also included, and the sleeve is sleeved on the telescopic rod; all the telescopic rods are located inside the sleeve; the side wall of the sleeve is a smooth surface;

The elastic member includes a pulling elastic rope, and the pulling elastic rope is arranged through the turning block; or, the pulling elastic rope is divided into two sections by the turning block;

The two ends of the step-shaped displacement member along the length direction form a thick side end and a thin side end respectively, and the end surface of the thick side end forms a pulling surface;

A pulling rope is arranged on the outermost displacement member along the arrangement direction of the plurality of displacement members;

The pulling surface and the pulling rope on the same side are connected to the same end of the support rod;

The first displacement member and the second displacement member are also provided with through holes, and the fastener passes through the through holes to securely connect the first displacement member and the second displacement member.

Compared with the prior art, the present invention has the following beneficial effects:

1. The fixing plate of the present invention is provided with a truncation groove, which can adjust the fixing position of the fixing plate on the ilium according to the needs of use, and then cut off the redundant part of the fixing plate to adapt to operations with different sacral truncation lengths.

2. The flexible fixation plate can make self-adaptive contact according to the surface shape of the ilium, and titanium mesh and other structures are arranged between the fixation plate and the ilium, so as to better fit the fixation plate and the ilium.

3. Threading holes are provided in the present invention to adjust the shape and size of the patch, so that the patch 4 can better support the pelvic organs and prevent postoperative patients from causing pelvic organ hernia due to severe activities such as coughing. out.

4. The rough surface of the support rod and the adapter plate can facilitate the climbing and growing of muscle tissue, and improve the fixing ability of the present invention. At the same time, the setting of the covering film on the patch can effectively play the role of anti-adhesion.

5. Through the setting of the telescopic rod, the adaptability of the present invention to the operation position is further enhanced.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a structural representation of the present invention;

Figure 2 is a schematic diagram of the fixed plate A;

Fig. 3 is the structural representation of fixed plate in the variation example;

Fig. 4 is the schematic diagram of band telescoping rod of the present invention;

Fig. 5 is a schematic diagram of the unstretched structure of the telescopic rod;

Fig. 6 is a schematic diagram of the partial stretching structure of the telescopic rod;

Fig. 7 is a schematic diagram of the structure when the telescopic rod is fully stretched;

Fig. 8 is a structural schematic diagram of a pattern of petal-shaped nail holes;

Fig. 9 is a structural schematic diagram of another pattern of petal-shaped nail holes.

The figure shows:

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

As shown in FIG. 1 , in the embodiment, the sacral fixation bracket provided by the present invention includes a fixation plate 1 , a support rod 2 , an adapter plate 5 and a patch 4 . Wherein the support rod 2 forms the first support rod 21 and the second support rod 22, the first support rod 21 and the second support rod 22 are symmetrically arranged at a certain angle, and the support rod 2 is mainly composed of a rod head 201, a shaft portion 202, The rod tails 203 are sequentially connected to form, the fixing plate 1 is installed on the rod head 201, and the two ends of the adapter plate 5 along the length extension direction are respectively connected with the rod tails 203 of the first support rod 21 and the rod tails 203 of the second support rod 22 , the first support rod 21 , the adapter plate 5 , and the second support rod 22 are sequentially connected in a smooth transition, and the patch 4 is arranged between the first support rod 21 and the second support rod 22 . As shown in Figure 2, the fixed plate 1 is provided with a plurality of nail holes 11 and a plurality of cut-off grooves 12, the nail holes 11 penetrate the fixed plate 1 along the thickness direction of the fixed plate 1, and the cut-off grooves 12 extend along the width direction of the fixed plate 1. Holes 11 and cut-off grooves 12 are arranged successively along the length extension direction on the fixing plate 1, and the nail holes 11 are used to fix the fixing plate 1 on the tissue structure such as the ilium with screws; the effect of the cut-off groove 12 is to facilitate The fixed position on the ilium of the plate 1, cut off the redundant protruding part of the fixed plate 1, to prevent the cutting of the surrounding tissues. Preferably, the nail hole 11 is petal-shaped, and the petal-shaped nail hole 11 includes a plurality of petal bodies 110, and the plurality of petal bodies 110 are arranged along the circumferential direction of the nail hole 11, as shown in Fig. 8 and Fig. 9 , The nail hole 11 includes three petals 110. When screwing in, three screws can be used to drive into the iliac bone along the conical surface to increase the fixing strength; of course, the nail hole 11 can also be circular, ensuring Circular nail hole 11 can drive into three screws and get final product. Further preferably, the number of screws driven into one nail hole 11 can also be two, four or more, adjusted according to actual needs, but relatively speaking, three screws have not only ensured the stability of fixing, It is also ensured that the driving operation of the screw will not be too difficult. The adapter plate 5 can be designed in a radian according to the data suggested by the patient's preoperative sacrum CT, and has a certain degree of flexibility to adapt to changes in the angle between the first support rod 21 and the second support rod 22 . In addition, a threading hole 25 is provided on the support rod 2 and/or the adapter plate 5, and the opening of the threading hole 25 extends smoothly. sheet 4, and the other end passes through the threading hole 25, so that in the operation process, the suture can be tightened or loosened as required to adjust the size of the patch 4, and when the size of the patch 4 is adjusted , just tie the length-adjustable suture and fix it. Through this structure, the patch 4 can better support the pelvic organs and prevent postoperative patients from herniation of organs due to strenuous activities such as coughing. Preferably, the patch 4 is a mesh structure, and the wires constituting the mesh structure may also be directly threaded through the threading holes 25 . Preferably, the surface of the support rod 2 and/or the adapter plate 5 is a rough surface, and further preferably, an absorbable layer such as a collagen film is also processed on the rough surface, on the one hand reducing the possibility of postoperative inflammation On the other hand, it facilitates the growth of muscles into the support rod 2 and the adapter plate 5, increasing and improving the fixing performance. Preferably, a film 7 is processed on the upper surface of the patch 4, and the film 7 is a decellularized dermal matrix biofilm, which plays an anti-adhesion role during the operation.

In a preferred example, the first support rod 21 and the second support rod 22 may also be parallel to each other, and adjustments shall be made according to actual usage conditions, but in comparison, the distance between the first support rod 21 and the second support rod 22 Setting the included angle is more in line with the biological characteristics of the imitation sacrum. Preferably, the support rod 2 is bent in the direction of its length extension. Viewed from the side, the support rod 2 is bent into a shape conforming to the physiological curve of the human body, that is, the shape of the sacrum. Preferably, the first support rod 21 and the second support rod 22 can also be directly connected by a hinge, and the support rod 2 is bent in the direction of length extension to reduce the height of the overall structure, but the use of a hinge will make the first support rod The adjustment freedom between 21 and the second support rod 22 is weakened, and the stability of the overall structure will be correspondingly reduced. In a preferred example, the fixing plate 1 is made of a flexible material. When a large force is applied, the fixing plate 1 can be deformed in the direction of length extension and the direction of width extension, so as to adjust the irregular shape of the surface of the ilium. It is suitable for fitting, but the strength of the fixed plate 1 will be correspondingly reduced; further preferably, a titanium mesh is arranged on the side where the fixed plate 1 and the ilium are fitted, so as to further improve the fit between the fixed plate 1 and the ilium, and in addition Injection holes can also be provided through the fixing plate 1, and bone cement or bioactive materials can be injected through the injection holes to increase the connection strength between the fixing plate 1 and the ilium. Preferably, the cut-off groove 12 can also be located on multiple planes of the fixing plate 1 . As shown in Figure 3, in the modification example, the fixed plate 1 includes a plurality of plate sections 261, and two adjacent plate sections 261 are connected by a universal adjustment rod 262, and nail holes 11 are provided on the plate sections 261 for driving in The screw and the universal adjusting rod 262 facilitate the rotation between the plate segments 261 to better adapt to the surface shape of the ilium. When the length of the fixing plate 1 is too long, it is only necessary to break the universal adjusting rod 262.

As shown in Figure 4, a telescopic rod 6 is also provided on the rod head 201, the shaft 202 or the rod tail 203, so that the position of the threading hole 25 can be adjusted accordingly during the operation according to the position of tissues such as nerves and blood vessels. . As shown in Figures 5 to 7, the telescopic rod includes a displacement member 61 and a turning block 62, and the plurality of displacement members 61 includes a first displacement member 611 and a second displacement member 612, and the first displacement member 611 and the second displacement member 612 The center is symmetrically arranged, and a plurality of turning blocks 62 are arranged between the first displacement member 611 and the second displacement member 612 , and the plurality of turning blocks 62 are connected by turning elastic ropes. An elastic member is also arranged between the first displacement member 611 and the second displacement member 612, and the elastic member maintains a tendency to draw the first displacement member 611 and the second displacement member 612 closer together. In the embodiment, the elastic member includes pulling The elastic rope 631 is pulled and closed. The elastic rope 631 is arranged through one of the turning blocks 62 , or is separated into two sections by the turning block 62 . As shown in Figures 5 to 7, the two opposite surfaces of the first displacement member 611 and the second displacement member 612 are stepped surfaces, along the direction from the thick side end 6150 to the thin side end 6160 of the first displacement member 611, the step surface is horizontal The first pressing surface 61031, the second pressing surface 61032, the third pressing surface 61033, and the fourth pressing surface 61034 are sequentially formed on the part, and the vertical part of the step surface forms the first resistance surface 61021 in turn. , the second resistance surface 61022 , and the third resistance surface 61023 ; The cross-sectional shape of the overturning block 62 is rectangular, and the length and width of the rectangular cross-section are not equal; It is defined that when the wide plane 6202 is parallel to the pressing surface, the overturning block 62 is in a standing state; when the long plane 6201 is parallel to the pressing plane, the overturning block 62 is in a fallen state. A plurality of turning blocks 62 include turning blocks 62 of four specifications, the first turning block 621, the second turning block 622, the third turning block 623, and the fourth turning block 624, along the center of the turning block 62 arrangement path to two In the direction of the end, the first overturning block 621 , the second overturning piece 622 , the third overturning piece 623 , and the fourth overturning piece 624 are arranged in sequence, and the pulling elastic rope 631 is connected to the first overturning piece 621 . The first overturning block 621, the second overturning piece 622, the third overturning piece 623, and the fourth overturning piece 624 are connected by the first overturning elastic cord 6321, the second overturning elastic cord 6322, and the third overturning elastic cord 6323 in turn. Pulling ropes 633 are also connected to the outer sides of the four overturning blocks 624. The pulling ropes 633 are used to connect with the support rod 2, and the pulling surface 6101 on the same side is connected to the same end of the support rod 2 as the pulling rope 633. In the embodiment, the elastic coefficients of the first overturning elastic cord 6321, the second overturning elastic cord 6322, and the third overturning elastic cord 6323 decrease successively. In addition, the overturning elastic cord is connected to the long plane 6201 of the overturning block, but is not connected to the long plane. The geometric center of the plane 6201 is staggered in the vertical direction when the overturning blocks 62 are in a standing state, so that when the pulling rope 633 is pulled, the overturning blocks 62 from both ends to the center are turned over in turn. Preferably, among the two wide planes 6202 of an overturning block 62, one of the wide planes 6202 is connected to the other adjacent overturning block 62 in the direction along the path of the overturning block 62 through an overturning elastic cord. The wide surface 6202, the other wide surface 6202 of which is connected to the wide surface 6202 of another inverting block 62 adjacent to the direction of the arrangement path of the inverting block 62 through another inverting elastic rope, or the other in which A wide surface 6202 is connected to the rigid shaft portion of the head portion 201 , the shaft portion 202 or the butt portion 203 via a pull cord 633 .

The working principle of the telescopic rod 6 is as follows: in the initial state, the structure of the telescopic rod 6 is shown in Figure 5, and the flipping blocks 62 are all in a standing state. Under the action of the flipping elastic rope, the flipping blocks 62 are arranged on the first pressing surface 61031, the pulling elastic rope 631 is in a stretched state, and under the action of the resilience force, the first pressing surface 61031 is attached to the wide surface 6202 of the fourth turning block 624. At this time, the pulling force of the two displacement parts 61 The distance between the guide surfaces 6102 is the shortest; when the pull guide surface 6101 and the pull rope 633 are pulled, the fourth flipping block 624 rotates and changes from a standing state to a fallen state, and the maximum height of the flipping block 62 decreases. Under the action of the resilience force of 631, the two displacement parts 61 move closer to each other, as shown in Figure 6, if the pulling of the pulling surface 6101 and the pulling rope 633 is stopped at this time, a wide surface 6202 of the fourth turning block 624 and the first A return preventing surface 61021 is in contact with, preventing the first turning block 621 from returning to the standing state under the action of the third turning elastic cord 6323, and the first displacement member 611 and the second displacement member 612 are in the fourth turning block 624 and/or the first turning member 624. Under the support of the three overturning blocks 623 and the pulling action of the pulling elastic rope 631, the stability in the height direction is maintained; continue to pull the pulling surface 6101 and the pulling rope 633, the third overturning piece 623, the second overturning piece 622, the third overturning piece 622, and the third overturning piece 623 One turning block 621 will turn over in turn, and the distance between the pulling surfaces 6102 of the two displacement parts 61 becomes larger gradually, as shown in Figure 7, at this moment, the fourth turning block 624, the third turning block 623, the second turning block The block 622 is respectively connected with the third anti-return surface 61023, the second anti-return surface 61022, and the first anti-return surface 61021. The two displacement members 61 are subjected to any one or any kind of overturning blocks 62 in the four kinds of overturning blocks 62. The support, as well as the pulling effect of pulling the elastic rope 631 , ultimately maintain the overall stability of the telescopic rod 6 . When the distance between the pulling surfaces 6102 of the two displacement elements 61 needs to be shortened, it is only necessary to pull the two displacement elements 61 away from each other.

In the preferred example, the specifications and types of the flipping blocks 62 are not limited to the above four types, and can be adjusted according to the adjustment length required, and the quantity of the flipping blocks 62 is also changed accordingly, but it is necessary to ensure that the alignment direction of the flipping blocks 62 is from the middle position. When the two ends are extended, the sizes and specifications of the plurality of overturning blocks 62 vary from small to large. Specifically, when the overturning blocks 62 are all in a standing state, from the middle position to the two ends, the number of overturning blocks 62 The height between them changes from small to large; correspondingly, the elasticity between the multiple turning elastic ropes changes from large to small, and there is a change in the position height of two adjacent turning elastic ropes in the up and down direction; further preferably, the turning block 62 is in the left and right direction It can also be asymmetrical, but the adjustment will not be smooth and coherent when used. Preferably, there may not be a one-to-one correspondence between the overturning block 62 and the anti-return surface, that is to say, during the process of pulling the telescopic rod 6, the overturning block 62 does not directly contact the anti-return surface when it is in a fallen state. , but through an adjacent overturning block 62 in contact with the anti-return surface to reduce the processing difficulty of the displacement member 61, but this structure has the disadvantage that the axial fixation is not stable enough. Preferably, the elasticity of the overturning elastic rope can also be consistent, and the installation position can also be at the geometric center of the overturning block 62 , which is easier to assemble, but it will cause confusion about the overturning of the overturning block 62 .

Preferably, a through hole may also be provided on the displacement member 61 for inserting fasteners to fix the first displacement member 611 and the second displacement member 612 , so as to further limit the movement of the adjusted telescopic rod 6 . Preferably, a sleeve 64 is provided outside the telescopic rod 6 , the sleeve 64 is sleeved on the telescopic rod 6 , and all the telescopic rods 6 are located inside the sleeve 64 ; the side wall surface of the sleeve 64 is a smooth surface. The sleeve 64 is divided into two parts along the vertical section, and wraps the telescopic rod 6 after being connected by snaps or fasteners, so as to prevent the sharp parts on the telescopic rod 6 from causing damage to surrounding tissues.

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims (10)

1. A sacral fixation bracket, characterized in that it comprises a fixed plate (1), a support rod (2) and a patch (4); The plurality of support rods (2) include a first support rod (21) and a second support rod (22), and the first support rod (21) and the second support rod (22) are parallel to each other or exist in the direction of axial extension. Angle; The patch (4) is arranged between the first support rod (21) and the second support rod (22); The support rod (2) comprises a rod head (201), a shaft part (202), and a rod tail part (203); the rod head (201), the shaft part (202), and the rod tail part (203) are connected in sequence; The fixing plate (1) is connected with the rod head (201); the rod tail (203) of the first support rod (21) is connected with the rod tail (203) of the second support rod (22). 2. sacrum fixation bracket according to claim 1, is characterized in that, also comprises adapter plate (5); Adapter plate (5) is made by flexible material, Both ends of the adapter plate (5) along the extending direction of the length are respectively connected to the rod tail (203) of the first support rod (21) and the rod tail (203) of the second support rod (22); The first support rod (21), the adapter plate (5), and the second support rod (22) are sequentially connected in a smooth transition. 3. The sacrum fixation bracket according to claim 2, characterized in that, the support rod (2) and/or the adapter plate (5) are provided with a threading hole (25); the hole of the threading hole (25) extends smoothly ; The support rod (2) is bent in the direction of length extension. 4. The sacrum fixation bracket according to claim 3, characterized in that, the threading hole (25) is pierced with a length-adjusting suture, and the length-adjusting suture is connected to the patch (4); The surface of the support rod (2) and/or the adapter plate (5) is a rough surface; A covering film (7) is arranged on the patch (4), and the covering film (7) is a decellularized dermal matrix biofilm. 5. The sacrum fixation bracket according to claim 1, characterized in that, the fixation plate (1) is provided with nail holes (11) and cut-off grooves (12); The nail hole (11) runs through the fixing plate (1) along the thickness direction of the fixing plate (1), and the cut-off groove (12) extends along the width direction of the fixing plate (1); Nail holes (11) and cut-off slots (12) are arranged sequentially along the length extension direction of the fixing plate (1); The fixing plate (1) is made of flexible material, and the fixing plate (1) can be deformed in the direction of length extension and the direction of width extension. 6. The sacral fixation bracket according to claim 5, characterized in that, the nail holes (11) are petal-shaped, and the petal-shaped nail holes (11) comprise a plurality of petals (110), and a plurality of the petals The body (110) is arranged along the circumferential direction of the nail hole (11); It also includes a titanium mesh, which is installed on the end surface of one end of the fixed plate (1) along the thickness direction; The fixing plate (1) is also provided with an injection hole through it. 7. The sacral fixation bracket according to claim 1, characterized in that, the fixation plate (1) comprises a plurality of plate sections (261), and two adjacent plate sections (261) pass through the universal adjustment rod (262) connect; Nail holes (11) are arranged on the plate section (261). 8. The sacral fixation bracket according to claim 1, characterized in that a telescopic rod (6) is arranged on the rod head (201), the rod body (202) or the rod tail (203). 9. The sacrum fixation bracket according to claim 8, characterized in that, the telescoping rod (6) comprises a displacement member (61), an overturning block (62) and an overturning elastic cord; The plurality of displacement elements (61) include a first displacement element (611) and a second displacement element (612), and the first displacement element (611) and the second displacement element (612) are arranged symmetrically to the center; the first displacement element (611 ) and the two opposite sides of the second displacement member (612) are stepped surfaces; The cross-sectional shape of the turning block (62) is rectangular; a plurality of turning blocks (62) are arranged between the first displacement member (611) and the second displacement member (612), and a plurality of turning blocks (62) pass through Flip elastic cord connection; An elastic member is arranged between the first displacement member (611) and the second displacement member (612), and the elastic member is in a stretched state. 10. sacrum fixation bracket according to claim 9, is characterized in that, also comprises sleeve (64), and sleeve (64) is sleeved on telescopic rod (6); Telescopic rod (6) is all positioned at sleeve ( 64) inside; the side wall surface of the sleeve (64) is a smooth surface; The elastic member includes a pulling elastic rope (631), and the pulling elastic rope (631) is arranged through the turning block (62); or, the pulling elastic rope (631) is divided into two sections by the turning block (62); The two ends of the step-shaped displacement member (61) along the length direction respectively form a thick side end (6150) and a thin side end (6160), and the end surface of the thick side end (6150) forms a pulling surface (6101); A pulling rope (633) is provided on the outermost displacement member (61) along the arrangement direction of the plurality of displacement members (61); Both the pulling surface (6101) and the pulling rope (633) on the same side are connected to the same end of the support rod (2); The first displacement member (611) and the second displacement member (612) are also provided with through holes, and the fastener passes through the through holes to fasten and connect the first displacement member (611) and the second displacement member (612) .